Argon information, including Technical Data, Safety Data and its High Purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
 Argon is a Block P, Group 18, Period 3 element. The number of electrons in each of Argon's shells is 2, 8, 8 and its electronic configuration is [Ne] 3s2 3p6.
In its elemental form argon's CAS number is 7440-37-1. The argon atom has a radius of 188.pm and
it's Van der Waals radius is 188.pm.
Argon is non-toxic.
Argon was discovered by Lord Raleigh and Sir William Ramsay in 1894.
 Argon |
 Argon |
 Argo |
 Argônio |
 argón |
 Argon |
Argon Abundance. The following table shows the abundance of argon and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| Ar-36 |
35.9675463 |
0.34 |
| Ar-37 |
36.9667759 |
- |
| Ar-38 |
37.9627322 |
0.06 |
| Ar-39 |
38.964313 |
- |
| Ar-40 |
39.962383123 |
99.60 |
The following table shows the abundance of Argon present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
| |
Typical Human Body |
Universe |
| by Weight |
no data |
200000 ppb |
| by Atom |
no data |
6000 ppb |
Argon Safety Data and Biological Role. The safety data for argon metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Argon compounds have no biological role.
Ionization Energy. The ionization energy for argon (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
1520.58 kJ mol-1 |
| 2nd Ionization Energy |
2665.88 kJ mol-1 |
| 3rd Ionization Energy |
3930.84 kJ mol-1 |
Conductivity. As to argon's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ºC is - µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is -. The thermal conductivity of argon is 0.0179 W m-1 K-1.
Thermal Properties of Argon. The melting point and boiling point for argon are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
1.21 kJ mol-1 |
| Heat of Vaporization |
6.53 kJ mol-1 |
| Heat of Atomization |
0 kJ mol-1 |
Recent Research & Development for Argon
Semi-synthesis of chondroitin sulfate-E from chondroitin sulfate-A.
Cai C, Solakyildirim K, Yang B, Beaudet JM, Weyer A, Linhardt RJ, Zhang F.
Carbohydr Polym. 2012 Jan 4;87(1):822-829.
PMID:
22140285
[PubMed]
Isothermal Evaporation of Ethanol in Dynamic Gas Atmosphere.
Milev AS, Wilson M, Kannangara K, Feng H, Newman P.
J Phys Chem A. 2011 Dec 2. [Epub ahead of print]
PMID:
22136647
[PubMed - as supplied by publisher]
[The use of confocal corneal microscopy in the Cogan microcystic dystrophy diagnosis and follow-up of the ultrastructural changes after phototherapeutic keratectomy].
Pirnerová L, Vlková E, Horácková M, Hlinomazová Z, Trnková V.
Cesk Slov Oftalmol. 2011 Aug;67(3):80-4. Czech.
PMID:
22132645
[PubMed - in process]
Differential sensitivity of lymphocyte subpopulations to non-thermal atmospheric-pressure plasma.
Haertel B, Volkmann F, von Woedtke T, Lindequist U.
Immunobiology. 2011 Nov 3. [Epub ahead of print]
PMID:
22130036
[PubMed - as supplied by publisher]
Influence of magnetic field on the electric breakdown in penning ion source.
Mahjour-Shafiei M, Noori H, Ranjbar AH.
Rev Sci Instrum. 2011 Nov;82(11):113502.
PMID:
22128971
[PubMed - in process]
Electronic transitions of cobalt monoboride.
Ng YW, Pang HF, Cheung AS.
J Chem Phys. 2011 Nov 28;135(20):204308.
PMID:
22128936
[PubMed - in process]
Complexation of formaldoxime with water. Infrared matrix isolation and theoretical studies.
Golec B, Mucha M, Mielke Z.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Nov 7. [Epub ahead of print]
PMID:
22127136
[PubMed - as supplied by publisher]
Colonoscopy-associated perforation: a 7-year survey of in-hospital frequency, treatment and outcome in a German university hospital.
Hagel A, Boxberger F, Dauth W, Kessler H, Neurath M, Raithel M.
Colorectal Dis. 2011 Nov 28. doi: 10.1111/j.1463-1318.2011.02899.x. [Epub ahead of print]
PMID:
22122526
[PubMed - as supplied by publisher]
Synthesis of gallium oxide nanomaterials on source material supply and their growth behavior.
Cho KK, Sim SJ, Kim HS.
J Nanosci Nanotechnol. 2011 Jul;11(7):6183-92.
PMID:
22121682
[PubMed - in process]
Highly lubricious poly(vinyl alcohol)-poly(acrylic acid) hydrogels.
Choi J, Kung HJ, Macias CE, Muratoglu OK.
J Biomed Mater Res B Appl Biomater. 2011 Nov 28. doi: 10.1002/jbm.b.31980. [Epub ahead of print]
PMID:
22120954
[PubMed - as supplied by publisher]
EPR studies of free radical decay and survival in gamma irradiated aminoglycoside antibiotics: Sisomicin, tobramycin and paromomycin.
Wilczynski S, Pilawa B, Koprowski R, Wróbel Z, Ptaszkiewicz M, Swakon J, Olko P.
Eur J Pharm Sci. 2011 Nov 17. [Epub ahead of print]
PMID:
22115867
[PubMed - as supplied by publisher]
Matrix and Polymer Soft-Landing Isolation of Selected Acids with Pyridine and Poly(4-vinylpyridine): A Comparative Infrared Spectroscopic Study of Hydrogen Bonding.
Lifschitz AM, Rodgers JM, Samet C.
J Phys Chem B. 2011 Nov 23. [Epub ahead of print]
PMID:
22111986
[PubMed - as supplied by publisher]
Continuous wave waveguide lasers of swift argon ion irradiated Nd:YVO4 waveguides.
Yao Y, Dong N, Chen F, Pang L, Wang Z, Lu Q.
Opt Express. 2011 Nov 21;19(24):24252-7. doi: 10.1364/OE.19.024252.
PMID:
22109451
[PubMed - in process]
A Case of Canine Multiple Inflammatory Colorectal Polyps Treated by Endoscopic Polypectomy and Argon Plasma Coagulation.
Tsukamoto A, Ohno K, Irie M, Ohmi A, Maeda S, Nakashima K, Fukushima K, Fujino Y, Uchida K, Tsujimoto H.
J Vet Med Sci. 2011 Nov 22. [Epub ahead of print]
PMID:
22104397
[PubMed - as supplied by publisher]
Lateral augmentation of the alveolar ridge using framework technique with allogeneic bone grafts.
Wallowy P, Dorow A.
J Oral Implantol. 2011 Nov 21. [Epub ahead of print]
PMID:
22103815
[PubMed - as supplied by publisher]
Nanotubular oxide surface and layer formed on the Ti-35Ta-xZr alloys for biomaterials.
Kim EJ, Kim WG, Jeong YH, Choe HC.
J Nanosci Nanotechnol. 2011 Aug;11(8):7433-7.
PMID:
22103213
[PubMed - in process]
Chronic rectal ulcer as result of combined mucosal toxicity of NSAID, argon plasma coagulation and radiotherapy.
Maximilien B, Romain C, Sarah L, Stanislas C.
Dig Liver Dis. 2011 Nov 17. [Epub ahead of print] No abstract available.
PMID:
22100723
[PubMed - as supplied by publisher]
[Spectroscopic study on the combustion reaction characteristics of methylcyclohexane].
Li CS, Li P, Zhang CH, Nie XF, Li XY.
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Sep;31(9):2521-4. Chinese.
PMID:
22097862
[PubMed - in process]
[Measurement of molecular vibrational temperature of circle-dot filament in dielectric barrier discharge].
Dong LF, Li YY, Song Q, Chen JY, Yuan N.
Guang Pu Xue Yu Guang Pu Fen Xi. 2011 Sep;31(9):2366-8. Chinese.
PMID:
22097828
[PubMed - in process]
Alumina coating on dense tungsten powder by fluidized bed metal organic chemical vapour deposition.
Rodriguez P, Caussat B, Ablitzer C, Iltis X, Brothier M.
J Nanosci Nanotechnol. 2011 Sep;11(9):8083-8.
PMID:
22097534
[PubMed - in process] |
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